In a major shift in one of the largest proposed public works projects in state history, California Gov. Gavin Newsom on Tuesday announced he does not support former Gov. Jerry Brown’s $19 billion plan to build two massive tunnels under the Sacramento-San Joaquin River Delta to make it easier to move water from the north to the south. “Let me be direct about where I stand,” Newsom said. “I do not support the twin tunnels. But we can build on the important work that’s already been done. That’s why I do support a single tunnel.”